glibc/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h

41 lines
1.3 KiB
C

/* Machine-specific POSIX semaphore type layouts. PowerPC version.
Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _SEMAPHORE_H
# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
#endif
#include <bits/wordsize.h>
#if __WORDSIZE == 64
# define __SIZEOF_SEM_T 32
#else
# define __SIZEOF_SEM_T 16
#endif
/* Value returned if `sem_open' failed. */
#define SEM_FAILED ((sem_t *) 0)
typedef union
{
char __size[__SIZEOF_SEM_T];
long int __align;
} sem_t;